The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Design of a Bidirectional Converter for Battery Charging, Discharging and Zero-voltage Control

배터리 충, 방전 및 영전압 제어를 위한 양방향 컨버터 설계

  • Received : 2022.02.28
  • Accepted : 2022.05.23
  • Published : 2022.10.20
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Abstract

This study proposes a converter that makes battery charging, discharging, and zero voltage control possible. The proposed topology consists of an LLC converter and a half-bridge inverter, and all power semiconductor devices are applied Si-MOSFETs. The topology is designed with an LLC switching frequency of 100 kHz, a half-bridge inverter switching frequency of 50 kHz, and a battery voltage of 5 V. The advantages of the charging/discharging operation of the 5 V battery voltage and the zero voltage control of the battery are verified. In addition, by using a two-stage topology, the battery can be charged, discharged through current control, and discharged to zero voltage. With the proposed topology, the current can be maintained even when the battery voltage drops to zero.

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Acknowledgement

본 연구는 국토교통과학기술진흥원의 "환경부하 저감을 위한 친환경 고효율 말단배송 기술 개발"의 연구비 지원을 받아 수행된 연구임. (No.21HCLP-C162885-01)

References

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